how to read a file using textscan in matlab

In Matlab, you can use the textscan function to read a file. It reads data from a file into an array or cell array. Here's an example code:

main.m
fid = fopen('filename.txt'); % Open the file
C = textscan(fid, '%s %f %f'); % Read the file data
fclose(fid); % Close the file
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The above code will read a file named filename.txt that has two columns with strings and two columns with floating point numbers separated by spaces, and store the data in a cell array C.

You can customize the function by changing the parameters to match the format of your data. The second parameter in textscan specifies the data format ('%s %f %f' in the example) and must match the data format in the file you're reading.

For more information, see the Matlab documentation: https://www.mathworks.com/help/matlab/ref/textscan.html